Category: Management | Resource

Conservation and Protection of Fisheries Resources of Bangladesh: Let Abide by Rules and Regulations

Bangladesh is a country of submerged with numerous wetlands. This is the blessing of nature that enriches the country with a rich aquatic biodiversity. About 265 Freshwater fish species are inhabitant in the water bodies of Bangladesh (Rahman, 2005), among which about 200 species are of small fishes (SIS fishes). According to IUCN Bangladesh (2000), Fifty four species are endangered. Such issues are occurring due to natural and man-made disturbance …read more

Category: Costal and marine | Management

Chemical factors affecting the life of shellfishes

In previous feature, different kinds of physical factors affecting the life of shellfishes were described. The most important physical factors are light, temperature, turbidity, depth, water current, substrate etc. In this feature, different types of chemical factors (viz. salinity, pH and dissolved oxygen) affecting the life of shellfish will be explained.

Salinity:

Salinity is a major environmental factor …read more

Category: Costal and marine | Management

Physical factors affecting the life of shellfishes

In nature, shellfishes are very crucial both in ecological and economical point of view among calcifying species. They play an important role in ecological balance and thus they are termed as engineer of the ecosystem, governing energy and nutrient flows in ecosystems, providing shelters and abodes for many benthic organisms and constituting an important food source for birds, crabs, starfishes, fishes and as well as for dairy and poultry. In …read more

Category: Biodiversity | Management

Migratory Pattern, Route and Abundance of Hilsa shad (Tenualosa ilisha)

Hilsa shad (Tenualosa ilisha): The national fish of Bangladesh

Hilsa shad (Tenualosa ilisha): The national fish of Bangladesh

During entire life, Hilsa shad (the national fish of Bangladesh) migrates both from sea to freshwater and freshwater to sea to meet the biological demand. Hilsa shad (Tenualosa ilisha) lives in the …read more

Category: Biodiversity | Management | Resource | Waterbody

Baluhar Baor: A Crucial Harbor of Great Diversity

Baluhar Baor area is a “Hot spot (a very rich area in biodiversity)” of Bangladesh. A total of 3 major species of Annelids, 20 species of Arthropods, 8 species of Mollusks, 72 species of Fishes, 3 species of Amphibians, 13 species of Reptiles, 52 different species of Birds, 16 species of Mammals, 22 species of Aquatic macrophytes and 145 species of flowering plants (Sub-kingdom: Phanerogamia) were identified …read more

Category: Fish Disease and Health | Management

Photofeature: EUS disease affected fishes of haor area

This feature presents some photographs of Epizootic Ulcerative Syndrome (EUS) or Red Spot disease affected fishes of different beels of Sunamganj haor area. Photograph 01

EUS affected Anabas testudineus

EUS affected Anabas testudineus

Anabas testudineus (Bloch, 1792) English Name: Climbing perch Bengali Name: …read more